WW1 trench, Pohjois-Haaga, Helsinki, Finland

Two First World War shelter rooms and incomplete machine gun position in base XXIII:7 in [Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) land front defense line in Pohjois-Haaga, Helsinki, Finland. The base was built in 1915 - 1918. The whole base contains: * 2 observations position * 3 machine gun positions * 3 shelter rooms More info: * [Location in Google Maps](https://goo.gl/maps/GKHtyiZMeN3woxYTA) * [Wikipedia: Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) * [John Lagerstedt , Markku Saari: Krepost Sveaborg](http://www.novision.fi/viapori/eavaus.htm) * [Finnish Heritage Agency site info](https://www.kyppi.fi/to.aspx?id=112.1000013840) (only in finnish)